用代码获取APP启动页图片

//// AppleSystemService.swift// Swift-Animations//// Created by YouXianMing on 16/8/11.// Copyright © 2016年 YouXianMing. All rights reserved.//import UIKitclass AppleSystemService : NSObject { /** Get the lauch image. - returns: The lauch image. */ class func launchImage() -> UIImage { var lauchImage : UIImage! var viewOrientation : String! let viewSize = UIScreen.mainScreen().bounds.size let orientation = UIApplication.sharedApplication().statusBarOrientation if orientation == .LandscapeLeft || orientation == .LandscapeRight { viewOrientation = "Landscape" } else { viewOrientation = "Portrait" } let imagesInfoArray = NSBundle.mainBundle().infoDictionary!["UILaunchImages"] for dict : Dictionary <String, String> in imagesInfoArray as! Array { let imageSize = CGSizeFromString(dict["UILaunchImageSize"]!) if CGSizeEqualToSize(imageSize, viewSize) && viewOrientation == dict["UILaunchImageOrientation"]! as String { lauchImage = UIImage(named: dict["UILaunchImageName"]!) } } return lauchImage }}

源码 - Objective-C

//// AppleSystemService.h// AppleSystemService//// Created by YouXianMing on 16/7/2.// Copyright © 2016年 YouXianMing. All rights reserved.//#import <Foundation/Foundation.h>#import <UIKit/UIKit.h>@interface AppleSystemService : NSObject/** * Get the lauch image. * * @return The lauch image. */+ (UIImage *)launchImage;@end//// AppleSystemService.m// AppleSystemService//// Created by YouXianMing on 16/7/2.// Copyright © 2016年 YouXianMing. All rights reserved.//#import "AppleSystemService.h"@implementation AppleSystemService+ (UIImage *)launchImage { UIImage *lauchImage = nil; NSString *viewOrientation = nil; CGSize viewSize = [UIScreen mainScreen].bounds.size; UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation]; if (orientation == UIInterfaceOrientationLandscapeLeft || orientation == UIInterfaceOrientationLandscapeRight) { viewOrientation = @"Landscape"; } else { viewOrientation = @"Portrait"; } NSArray *imagesDictionary = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"UILaunchImages"]; for (NSDictionary *dict in imagesDictionary) { CGSize imageSize = CGSizeFromString(dict[@"UILaunchImageSize"]); if (CGSizeEqualToSize(imageSize, viewSize) && [viewOrientation isEqualToString:dict[@"UILaunchImageOrientation"]]) { lauchImage = [UIImage imageNamed:dict[@"UILaunchImageName"]]; } } return lauchImage;}@end

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